Jim …
How well it “works” will be almost entirely dependent on the radial system you
have installed and on the local noise level. I’d recommend at least 32
radials - as long as you have space for. On or in ground is fine.If you do
that, the performance and patterns should be
Lou …
You are looking in the right place, in my opinion, with Siglent, Rigol, etc.
Another brand to look for is Hameg.They all offer lots of features and
value for the $$.
Great buys on Spectrum Analyzers there also, by the way ;>)
Back when I had my lab I had Agilent scopes, but if I
It is very true that - in a contest situation - we aren’t often concerned with
measuring signal levels. No argument.
And, if contesting, DXing and rag chewing are all you use your K3 / K4 for,
then I understand why you aren’t interested in the additional bells & whistles
that are being
Great post Wes
73 Craig AC0DS
> On 10, Mar2020, at 9:40 PM, Wes wrote:
>
> Before I retired the second time I was managing a small group of components
> engineers. Several of my guys worked full time on parts obsolescence issues.
> "Lifetime buys" sound like a good idea until you run
Lee …
You’re on the right track with changing the coax. You have some sort of
resistive loss. As you note, the “bandwidth” is much higher than it should be.
My inverted L had a 2:1 SWR bandwidth of perhaps 35 KHz at most. Your low
SWR across the entire band indicates very low efficiency
I have for sale a like-new Fluke model 87-V multimeter along with extra
accessories. This is the industry standard handheld meter for electronics
work. 4.5 digit display, 0.05% accuracy, extensive capacitance measuring
capability, temperature measurement with included probe and legendary
Greetings Peter …
Have a look at this one:
https://www.amazon.com/Dimmable-Stoog-Brightness-Rechargeable-Adjustable/dp/B01CSHZ99Y/ref=sr_1_10?s=home-garden=UTF8=1483715928=1-10=usb+led+desk+lamp
I’m not claiming this is the highest quality lamp ever made. I also do not
currently have a way
Jeff …
I understand your reaction, but don’t think this one is due to anything at
Elecraft.If you have a “My UPS” type of account with UPS, then you will
receive that kind of email from UPS automatically no matter who initiates the
shipment.
I’ve also been surprised and mystified on
This is a very clean K3 - 100F 100 watt transceiver (S/N 45XX). I am the
original owner, non-smoker.
Features:
Filters FM 13Khz, AM, 6 Khz, 2.8 Khz, 500 Hz, 400 Hz
K144 2 meter module (totally gone through at Elecraft)
KSYN3A synthesizer upgrade.
All updates to current specifications with a
Thank you for the response W6WL
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I am the original owner, non -smoker. Excellent condition with manual.
$650 obo. Contact me at w...@arrl.net
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Ted …
I think you are overstating the coax losses. Even stock RG-11 should be
perhaps 0.3 dB/100ft on 80 meters - around 1.5 dB for the 500 ft. run.
Even so, I would probably gravitate toward the closer location. With the
elevated radials, the effects of the ground conductivity should be
Jack was indeed a fine gentleman and an excellent designer. Never had the
pleasure of a face-to-face meeting, but was the recipient of his expertise and
kindness more than once.
I really appreciated his designs. Excellent performance, of course, but also
incredible attention to detail in
Thanks for the garage door opener experience. I had my door and opener
replaced a few months ago. The manual for the opener (Lift Master)
specifically says not to use LED bulbs. I was scratching my head over that
but did use CFLs in the opener. I asked the installer why that
Thanks, Bill.I have the newer DC motor with Battery Backup Liftmaster, but
I’m guessing the receivers might be similar. Interestingly, in the new manual
they actually recommend CFLs but warn against LED. Obviously the front end of
their receiver is not designed to Elecraft standards
You are wise, Ted, to be cautious about this.
As you implied, it is not the LEDs themselves but how they are driven.
LEDs are current driven devices and, for a given intensity, are typically
driven by a constant current source. In the case of a panel LED in a K3 or
whatever it is easy to do
I heard from my time-nerd friends that the modulation scheme changes for
a short period at night to allow a chance for older equipment to sync
up. I don't know that for sure.
Technology Review said there are millions of pieces of equipment that
use the older scheme.
This is indeed
I also had very good results with the Gamma with my K3. In CW mode, it will
support an output power of about 75W. More on SSB I would guess.
73 Craig AC0DS
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It seems to me that using the two smaller packs would have some advantages for
your application. They would each be able to power both the KX-3 and the
amplifier, just for about half the time of the single larger battery. So you
would have to switch over to the other battery at some point.
Sounds like a fairly good experience overall, Jim.
I'm on an even smaller ( 0.25 acre) HOA restricted lot and had an inverted L
on 160 that I used in conjunction with a K9AY receive antenna. I really liked
the K9AY, as it allowed for directional switching and very good S/N ratios with
a
direction can be either an advantage or disadvantage.
73 Craig AC0DS
Craig Smith
1009 Alder Way
Longmont, CO 80503
cr...@powersmith.net
303-834-7712
On 26, Sep2013, at 10:33 AM, Vic K2VCO wrote:
How high was the 44' doublet?
How was it oriented compared to the Omni Angle
Even at 100 W, BNC is clearly the best choice. The first thing I did when I
got my K3 was to get rid of the UHF connectors and put in proper BNCs.
73 Craig AC0DS
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I have a like new set of all black 73CNC K3 Main and VFO B Knob Combo
for $100 (Cost me $150). I will pay for shipping within the lower 48
states. You can contact me via my email address w...@arrl.net.
Craig
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The Agilent Scope has been sold
73 Craig AC0DS
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From time-to-time there are discussions here about purchasing oscilloscopes,
so thought I'd post this for my Elecraft friends who may be interested in
acquiring a high quality scope at a fair price.
I have for sale my mint condition Agilent DSO5034A oscilloscope, SN MY47150520.
This was
I have for sale a quantity of 8 large Fair-Rite type 31 mix clamp-on cores.
These are the best available cores for conveniently making high performance
common-mode chokes over the HF amateur bands. Fair-Rite PN is 0431177081 and
the Mouser PN is 623-0431177081. I purchased these new from
The ferrite cores have been sold.
73 Craig AC0DS
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I have for sale my GW Instek SFG-2110 10 MHz synthesized function generator. I
purchased it new in 2007 and it has since seen light use in my non-smoking lab.
Closing down lab in preparation for a move, so time to let it go. It is in
absolutely mint condition and functions perfectly.
This is a
I have for sale my GW Instek SFG-2110 10 MHz synthesized function generator. I
purchased it new in 2007 and it has since seen light use in my non-smoking lab.
Closing down lab in preparation for a move, so time to let it go. It is in
absolutely mint condition and functions perfectly.
This is a
I have for sale my Astron SS-30M power supply in perfect condition. This is
ideal for powering a K3 class 100 watt rig, and provides 30 amps in amateur
class service and 25 amps continuous duty. Metering of both output voltage and
current. I bought this new in 2006 and it has since
The Astron SS-30M has been sold.
73 Craig AC0DS
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I have for sale three Mini-modules. I built each of them and they are all in
perfect condition. Closing down the shack and lab here in preparation for a
move, so its time to do some major cleaning. Purchase includes all
documentation as well as USPS Priority Mail shipping to your USA QTH.
test
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Please help support this
I have for sale three Mini-modules. I built each of them and they are all in
perfect condition. Closing down the shack and lab here in preparation for a
move, so its time to do some major cleaning. Purchase includes all
documentation as well as USPS Priority Mail shipping to your USA QTH.
The AIM4170 has been sold.
73 Craig AC0DS
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I have for sale my AIM4170 antenna analyzer SN 3049. I purchased this new in
2007 and it is in perfect working condition. This has been one of my best ever
purchases and has been invaluable for both antenna and lab measurements. Am
cleaning out the lab and shack in preparation for a move, so
I have for sale three Mini-modules. I built each of them and they are all in
perfect condition. Closing down the shack and lab here in preparation for a
move, so its time to do some major cleaning. Purchase includes all
documentation as well as USPS Priority Mail shipping to your USA QTH.
I have for sale a Clifton Labs Active Antenna system plus extras as will be
described below. This is a receive-only active whip with a very small
footprint and visual impact that is ideal for use with a K3 as a secondary
vertically polarized antenna for diversity reception. Specified
The Clifton Labs antenna has been sold.
73 Craig AC0DS
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In the process here of dismantling my station in preparation for an eventual
move. Have for sale my mint condition P3 panadapter SN 67. I bought this new
as a kit in 2010 and it has been operating flawlessly since then in my
non-smoking shack. Comes complete with power, RS-232 and IF out
The P3 has been sold.
Thanks, everyone, for the interest.
73 Craig AC0DS
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I have both with my K3. If I could have only one, it would definitely be the
P3. The sub RX is great for diversity receive which helps a lot in CW
contesting. But the P3, as other have pointed out, lets you quickly find where
to place your signal when trying to find a good run frequency.
I can second Jack's recommendation of Wiha drivers. I've used a set here since
2006 and they are wonderful.
73 Craig AC0DS
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I installed the Oak Hills BNC connectors in my K3 during the initial build 5
years ago. Great decision. Much more convenient and allows for rapid cable
changes. Everything in my shack and antenna runs has been standardized with
BNCs.
73 Craig AC0DS
It boils down to personal preference, and I like BNCs. UHF seem really large
and clunky to me, and I don't like having to unscrew them rather than just a
small twist. One factor that other folks might not have is that I run strictly
low power and the largest coax I have anywhere in my station
More shack cleaning here. I have for sale two baluns, both in excellent
condition. I purchased them new and had used them occasionally for some
temporary contest setups, but they have been inside and unused most of the
time. Prices include manufacturer's printed documentation and shipping
Steve has done some amazing things with mobile ham gear and computers,
especially considering that much of his work was done in the 70s and 80s.
Subsequent to his mobile recumbent bicycle projects, last I knew he was working
on doing the same with kayak based sailing vessels with extensive
I have for sale a Gamma Research HPS1-a power supply. This is a unique supply
that is optimized for providing reliable power to a 100W class transceiver such
as a K2 or K3 in the smallest and lightest possible package. It is thus ideal
for portable operation, DXpeditions, etc. The supply
The Gamma power supply has been sold. Thanks!
73CraigAC0DS
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I have for sale a CG-3000 Automatic remote antenna tuner. This unit is
functional, and just recently removed it from an antenna that I am no longer
using. I purchased the unit new in 2008 from Array Solutions and it has been
working flawlessly since then in my application of tuning verticals
The tuner has been sold. Thanks for all the interest.
73 Craig AC0DS
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The MH-2 mic, BL-2 and 4:1 BL-1 have been sold.
1:1 BL-1, dummy load and headphones still available.
73 Craig AC0DS
Doing some shack cleaning, and have the following mostly Elecraft items for
sale. All prices include insured USPS Priority Mail shipping to your US
address. US sales
Doing some shack cleaning, and have the following mostly Elecraft items for
sale. All prices include insured USPS Priority Mail shipping to your US
address. US sales only, please. Payment via PayPal. Can save some $$ with
combined shipping on purchase of multiple items. Contact me
Hi Ken …
Just checked the Fair-rite website, and the type 31 cores are indeed there.
But they aren't easy to find. You need to go to Products then Cable
components then EMI suppression beads.
They have a wide variety of part numbers using type 31 material.
I buy mine from Mouser which has
Good Deal Ken. Also they have a selection of type 31 clamp-on cores listed
under Snap-Its.
73 Craig AC0DS
On 10, Feb2012, at 1:45 PM, Ken Alexander wrote:
Son of a gun! I was right there but I was fooled by the illustration of the
bead. I left the page when I thought I was looking
Fair-rite
On 10, Feb2012, at 2:10 PM, Dick Stein wrote:
Hi Craig: Who is the vendor They when you say they have a selection?
Dick, K2ZR/4
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Perhaps coincidentally, yesterday my P3 was also off by 30 Hz based on the
carrier frequency of BCB stations. It had been dead-on since I calibrated it
over a year ago. Haven't had time to explore further, but will recalibrate if
this persists.
73 Craig AC0DS
Craig Smith
1009 Alder Way
Unless you live in a very quiet area, you won't need a preamp, Jim. My K9AY
is smaller than average and even with its lower sensitivity I have never needed
an external preamp. In fact, I normally have the K3 internal preamp OFF on 80
and 160. Even use the attenuator or back off the RF gain
I have a functioning K3 here and also a Fluke 115, which is quite similar to
the 117.
On the ohms range the meter reads OL. On the Kohms range it reads about 4
Kohms.
I think Don is right and it is OK to proceed. If your reading was
substantially LESS than 4 K I would be concerned.
73
I certainly understand the impracticality in terms of cost and size of
designing the basic KAT500 with a large number of output ports. My personal
wish is that an optional external Elecraft unit will eventually be available
that will allow for port expansion based on the user's desire for
for a
hardcopy reference.
73 Craig AC0DS
Craig Smith
1009 Alder Way
Longmont, CO. 80503
303-834-7712
On Jun 25, 2011, at 9:49 AM, Rose elecraftcov...@gmail.com wrote:
Cover is in color ... text and inside photos are B/W
73! Ken - K0PP
On Sat, Jun 25, 2011 at 8:28 AM, Bill W4ZV btipp
Looks very interesting Fred - thanks!
Question: what is your plan for later revisions? If ordering a PDF are later
revisions included with the purchase? If ordering a printed bound copy do you
also get PDF access?
73 Craig AC0DS
Another option that will work for a straight cut and not subject the pcb to
lots of vibration is just a hacksaw.
73. Craig. AC0DS
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Add another positive vote for these speakers. I've been using them with my K3
after trying others, including non-powered speakers. I find them to be perfect
for my use. Never a hint of any RF issues, and they sound GREAT with the K3.
Nice and small, including the price.
73 Craig AC0DS
Two items here:
RX EQ by mode - or at least one separate setting for CW!
Build as much flexibility and functionality as humanly possible into the P3,
even if much of it is optional. Perhaps the last near-term opportunity to add
major hardware to the K3 and provide extra switches and operator
Great news! I went ahead this afternoon and uploaded the new firmware, and it
went smooth-as-silk. Now running level 3.14 w/o any problems. Must just have
been an incompatibility between the new utility and the older firmware when
doing configuration saves. Thanks again to everyone for all
I'm with you on this one, Keith! I'm a low power CW contester and
would surely enjoy using the 150 or 200 W power limit when appropriate
instead of accepting the db or so of loss with my 100W K3. I have NO
interest in running a KW, however, so high power amps have no appeal
here. A
I think you have arrived at a good understanding of the benefits/limitations of
both the StepIR and the remote tuner approaches. I use the remote tuner
approach, but would think that the StepIR should give similar results. And, as
you point out, the total costs of the two approaches are
I've been quite pleased with the Comspkr from West Mountain Radio. Good sound,
small size, volume and low cut controls, no RFI and a pair is quite reasonably
priced.
73 Craig AC0DS
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I prefer the smaller tuning range, Dave. Makes for much easier
tuning. FYI, the advertised tuning ranges are only approximations.
Mine ended up at about 85 KHz, which is fine.
The internal tuner would be convenient. I use the external T1 tuner
instead, as it has the capability to
Thanks, Eric, for the update. This is exactly the kind of info I was
hoping for from Elecraft on the diversity filter issue. Now I can
complete the process of finalizing my RX3 and filter order to
complement my existing 5 pole filters. The $30 fee for matching to
the offsets I already
It's even better than Rich indicated. Just visited the site, and the price is
now $23. Not really shown on the web page, but apparently the second spool is
only $15. I ordered two 1640 foot spools in different colors for total of $38.
Should last me till I die and then some!- Thanks
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